Callback delegate invoked when the waveform analyzer has completed its graphic rendering, allowing to add custom graphics directly from the container application's code: this callback can be set through a call to the CallbackWaveformAnalyzerPaintDoneSet method.

Handle (HWND) to the window of the Waveform Analyzer: through this handle its possible accessing the handle to the device context (HDC) of the Waveform Analyzer using Windows API, for example through the GetDC and ReleaseDC functions.